Glenn D. Cohen, M.D.
Specialist · Westlake Village, CA
Glenn D. Cohen, M.D. is a specialist with a practice address in Westlake Village, California, and NPI 1881755056, issued on Dec 12, 2006. Check the license (California A55543, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Glenn D. Cohen
- Credential
- M.D.
- Primary taxonomy
- Specialist 174400000X
- License number
- A55543 CA
Self-reported in NPPES; status is on the state search - Practice location
- 696 Hampshire RD, Westlake Village, CA 91361
- Phone
- (805) 370-6877
- Enumerated
- Dec 12, 2006
- Record last updated
- Jul 31, 2008 (not updated in 18 years: call before relying on the address or phone)
- Fax
- (805) 777-7411
- Entity
- Type 1 · individual
8 nearest specialist records → All 5,749 in California → Look up another NPI →
Also registered at 696 Hampshire RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Glenn D. Cohen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license A55543Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
99% fewer Medicare Part D claims than the average specialist in 2024
20 Medicare Part D claims for 18 beneficiaries, against an average of 1,380 among the 8,233 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims. 17 claims were for opioids.
Most prescribed
- Acetaminophen-Codeine15 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Glenn D. Cohen among 5,749 specialist records in California
Glenn D. Cohen, M.D. is one of 5,749 specialist records with a practice address in California. 30% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 7% of them.
- NPI issued2006 · 7% of these records are older, 60% newer
- In a Medicare fileYes · 30% of these records are
- In the CMS Doctors and Clinicians fileNo · 19% of these records are
- Record last updated2008 · 77% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 174400000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
17 specialist records list a practice address in Westlake Village
They are 17 of the 1,397 NPPES records with a practice address in Westlake Village, and 5,749 specialist records in California.
All 5,749 in California → Every provider in Westlake Village → Specialist nationwide →
The 8 specialist records with the nearest ZIP codes
- Neeta Ambe-Crain, M.D.Westlake Village, CA 913611093832255
- Michael Bastien, MDWestlake Village, CA 913611053371096
- Randolph Capri, MDWestlake Village, CA 913611750340345
- Gary Carlson, MDWestlake Village, CA 913611144280181
- John Darin, M.D.Westlake Village, CA 913611902801764
- Kenneth Diddie, M.D.Westlake Village, CA 913611184684219
- Rosemary Flores, M.D.Thousand Oaks, CA 913611871593095
- Robert Ghaussy, M.D.Thousand Oaks, CA 913611053311274
Common questions
What is Glenn D. Cohen, M.D.'s NPI number?
Glenn D. Cohen, M.D.'s National Provider Identifier (NPI) is 1881755056, issued on Dec 12, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Glenn D. Cohen, M.D. located?
The NPPES record lists a practice address at 696 Hampshire RD, Westlake Village, CA, 91361. Phone: (805) 370-6877. Providers update this record themselves, so call before visiting.
How can I verify Glenn D. Cohen, M.D.'s license?
NPPES lists California license number A55543, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Glenn D. Cohen, M.D. prescribe under Medicare Part D?
In 2024, Glenn D. Cohen, M.D. had 20 Medicare Part D claims for 18 beneficiaries; the average among specialist prescribers was 1,380. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.